45211455531 has 16 divisors (see below), whose sum is σ = 73069019520. Its totient is φ = 27400881960.

The previous prime is 45211455479. The next prime is 45211455539. The reversal of 45211455531 is 13555411254.

45211455531 is a `hidden beast` number, since 4 + 5 + 2 + 114 + 5 + 5 + 531 = 666.

It is not a de Polignac number, because 45211455531 - 2¹⁸ = 45211193387 is a prime.

It is a super-2 number, since 2×45211455531² (a number of 22 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (45211455539) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 76113265 + ... + 76113858.

It is an arithmetic number, because the mean of its divisors is an integer number (4566813720).

Almost surely, 2^45211455531 is an apocalyptic number.

45211455531 is a deficient number, since it is larger than the sum of its proper divisors (27857563989).

45211455531 is a wasteful number, since it uses less digits than its factorization.

45211455531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152227143 (or 152227137 counting only the distinct ones).

The product of its digits is 60000, while the sum is 36.

Adding to 45211455531 its reverse (13555411254), we get a palindrome (58766866785).

The spelling of 45211455531 in words is "forty-five billion, two hundred eleven million, four hundred fifty-five thousand, five hundred thirty-one".